Hubble Deep Field by Don Nardo
Author:Don Nardo [Nardo, Don]
Language: eng
Format: epub
Tags: 9780756556433;9780756556471;9780756556518;nonfiction;Compass Point Books;Captured History Science;universe;space photography;space exploration;telescopes;galaxies;NASA;History / United States / 20th Century;People & Places / United States / General
Publisher: Capstone
Published: 2017-06-21T00:00:00+00:00
Hubble photographed NGC 3344, a spiral galaxy about half the size of the Milky Way. It is about 25 million light-years away.
As John Wilford pointed out, astronomers expected âthat more detailed analysis of these pictures and further Hubble photography of the same region, combined with observations by some of the worldâs most powerful ground-based telescopes, should lead to a better understanding of how galaxies form and evolve and when these processes began in the young universe.â22 That is, when people look at the photo Williams and his colleagues took, how far back in time are they seeing? âThe researchers likened their achievement to an archeological dig,â Wilford wrote. âIn particular, they compared it to archeologistsâ finding ruins of a royal city, sensing they have something big but not knowing its age.â23
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